Hydro-thermo irrigation mat

a technology of water-thermal irrigation and mats, which is applied in the field of water-thermal irrigation mats, can solve the problems of high cost, cumbersome mat types, and need to be assembled on site, and achieve the effects of reducing the number of mats

Active Publication Date: 2009-05-28
UNIV LAVAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These types of mats are cumbersome and need to be assembled on site and are very expensive.
However, when heating potted plants the heat normally dries up the plants particularly in small cells for growing propagation plugs and accordingly it is necessary to periodically water the plants.
Also, the heat is not evenly distributed on the contact surface of the pot.
Also, these tubes being exposed directly onto a support table or on potted plants are subject to puncture and therefore malfunction.
This is time consuming and expensive.
Because the tubes are exposed to ambient air, a lot of the heat is lost into the space.
This system is not totally efficient.

Method used

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Embodiment Construction

[0013]Referring now to the drawings and more particularly to FIG. 1 there is shown generally at 10 the hydro-thermo irrigation mat of the present invention. With further reference to FIG. 2 there is shown the construction of the irrigation mat and as herein shown it is comprised of a base sheet 11 which is an impermeable base sheet but may alternatively have holes or slits therein in an amount small enough to allow a very slow seepage of water from the mat to a ground surface when supported thereon. These slits or holes are not large enough to allow good contact with the underneath soil. The mat also comprises a water permeable top sheet 12 provided with perforations 13 to permit the passage of water to the top surface 14 of the top sheet 12.

[0014]Between the bottom sheet 11 and the top sheet 12 is disposed a capillary mat 15 of absorbent material having high capillary properties whereby to permit circulation of water in all direction therein. The water as retained by the mat seeps ...

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Abstract

A hydro-thermo irrigation mat (10) is comprised of a base sheet (11), a water-permeable root-shielding top sheet (12), and a capillary mat (15) of absorbent material therebetween. One or more flat pliable drip tapes (18) are loosely disposed in spaced-apart relationship between the top sheet (12) and the capillary mat (15). Hot water convection tubes (25) are disposed co-axially with the drip tapes (18) but between the base sheet (11) and the capillary mat (15). The drip tapes (18) are connected to a water supply line (22) and the hot water convection tubes (25) are secured to a hot water supply line (28). Water within the mat is heated and distributes heat from the hot water convection tubes (25) substantially throughout the mat.

Description

TECHNICAL FIELD[0001]The present invention relates to a hydro-thermo irrigation mat and particularly, but not exclusively, for heating and watering potted plants in nurseries during cold weather conditions.BACKGROUND ART[0002]Irrigation mats are known and an example of these is described in PCT application WO2004 / 056172 filed on Dec. 23, 2002 and relating to an irrigation mat for the irrigation of potted plants. This mat was designed primarily to absorb and retain water which is sprinkled over the mat by overhead sprinklers. U.S. Pat. No. 5,839,659 discloses a capillary root zone irrigation system utilizing an irrigation mat wherein water is supplied into the mat by rigid polyethylene pipes which are perforated. These types of mats are cumbersome and need to be assembled on site and are very expensive.[0003]In our pending application Ser. No. 2,498,077 there is described an irrigation mat which includes drip tapes incorporated therein and wherein the mat and the drip tapes can be ro...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A01G25/06
CPCA01G9/247A01G9/245Y02A40/25
Inventor THEORET, RICHARDHELIE, SYLVAIN
Owner UNIV LAVAL
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